Antenna module and customer premise equipment

Abstract

The application relates to an antenna module and a customer front-end device. The antenna module comprises a horizontal polarization radiation unit and a vertical polarization radiation unit. The horizontal polarization radiation unit has a first signal radiation surface, the vertical polarization unit comprises at least one vertical polarization antenna, the vertical polarization antenna has a second signal radiation surface, the second signal radiation surface is arranged perpendicularly to the plane of the first signal radiation surface, one of the horizontal polarization radiation unit and the vertical polarization radiation unit is used for omnidirectional radiation of radio frequency signals of first and second network modes, and the other is used for omnidirectional radiation of WiFi signals. The horizontal polarization radiation unit and the vertical polarization radiation unit are designed in an orthogonal form of polarization, high isolation is ensured between the horizontal polarization radiation unit and the vertical polarization radiation unit, and omnidirectional radiation can be ensured, so that the coexistence and omnidirectional coverage of 4G LTE signals, 5G NR signals and WiFi signals can be realized in a small space, and the structure is simple and the occupied space is small.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and in particular to an antenna module and a customer front-end device. Background Technology

[0002] Customer Premise Equipment (CPE) is a mobile signal access device used to receive mobile signals and forward them as wireless WIFI signals. It is also a device that converts 4G or 5G signals into WiFi signals.

[0003] To improve the 4G / 5G signal access and Wi-Fi signal coverage experience of customers' front-end devices, it is generally required that each antenna used to radiate 4G / 5G and Wi-Fi signals has omnidirectional coverage and high isolation between antennas. However, in a small space, it is difficult for antennas to achieve both omnidirectional coverage and high isolation, for example, the isolation between the 4G LTE B40 / 41 band, the 5G NR N40 / 41 band, and the Wi-Fi 2.4G band. Summary of the Invention

[0004] This application provides an antenna module and a customer front-end device that can achieve high isolation and omnidirectional coverage between radio frequency signals and WiFi signals of the first and second network standards using orthogonal polarization.

[0005] This application provides an antenna module, including:

[0006] Horizontally polarized radiation unit;

[0007] A vertically polarized radiation unit is provided, positioned opposite to the horizontally polarized unit, and perpendicular to the plane containing the first signal radiation surface of the horizontally polarized radiation unit.

[0008] One of the horizontally polarized radiation unit and the vertically polarized radiation unit is used to omnidirectionally radiate radio frequency signals of the first and second network standards, and the other of the horizontally polarized radiation unit and the vertically polarized radiation unit is used to omnidirectionally radiate WiFi signals.

[0009] This application provides an antenna module, including:

[0010] A horizontally polarized radiation unit has a first signal radiation surface;

[0011] A vertically polarized radiating element includes at least one vertically polarized antenna, each antenna having a second signal radiating surface, and the second signal radiating surface of the vertically polarized antenna is perpendicular to the plane containing the first signal radiating surface of the horizontally polarized radiating element; wherein...

[0012] One of the horizontally polarized radiation unit and the vertically polarized radiation unit is used to omnidirectionally radiate radio frequency signals of the first network standard and the second network standard, and the other of the horizontally polarized radiation unit and the vertically polarized radiation unit is used to omnidirectionally radiate WiFi signals.

[0013] In one embodiment, the horizontally polarized radiation unit includes a first substrate and a plurality of horizontally polarized radiators, and the plurality of horizontally polarized radiators are arranged axially or rotationally symmetrically on the first substrate.

[0014] In one embodiment, a plurality of the horizontally polarized radiators are arranged around the first substrate.

[0015] In one embodiment, the first substrate has a first surface and a second surface disposed opposite to each other, wherein the horizontally polarized radiation unit includes three or more horizontally polarized radiators that are rotationally symmetrical, the included angle between two adjacent horizontally polarized radiators is equal, and each horizontally polarized radiator includes a first radiation group and a second radiation group that are mirror symmetrical, wherein the first radiation group and the second radiation group are both located on the first surface, or the first radiation group is located on the first surface and the second radiation group is located on the second surface.

[0016] In one embodiment, the first radiation group includes at least a first radiation arm and a second radiation arm that are spaced apart from each other, wherein the length of the first radiation arm is greater than the length of the second radiation arm.

[0017] The second radiating group includes at least a third radiating arm and a fourth radiating arm spaced apart from each other. The third radiating arm corresponds to the first radiating arm and is used to radiate a first frequency band signal, and the fourth radiating arm corresponds to the second radiating arm and is used to radiate a second frequency band signal. In one embodiment, the antenna module further includes a support member, on which both the horizontally polarized radiating element and the vertically polarized radiating element are mounted, and the vertically polarized antennas are spaced apart along the outer periphery of the support member.

[0018] In one embodiment, the support includes a top support wall and multiple side support walls, the multiple side support walls are connected end to end and enclose a receiving cavity, and the top support wall covers one end of the receiving cavity. The horizontally polarized radiation unit is disposed on the top of the support, and at least one vertically polarized antenna is disposed on each side support wall.

[0019] In one embodiment, the support member includes a supporting top wall and a circumferential curved side wall, and the circumferential curved side wall and the supporting top wall enclose a receiving cavity. The horizontally polarized radiation unit is disposed on the supporting top wall, and a plurality of uniformly distributed vertically polarized antennas are disposed on the circumferential curved side wall.

[0020] In one embodiment, the support member is a one-piece molded structure, or the support member is an assembly structure composed of multiple components.

[0021] In one embodiment, the antenna module further includes a circuit board, which is electrically connected to the horizontally polarized radiation unit and the vertically polarized radiation unit, respectively.

[0022] In one embodiment, the vertically polarized antenna includes a second substrate and a vertically polarized radiator disposed on the second substrate, the second substrate being mounted on the support member, wherein the horizontally polarized radiating element is disposed away from the circuit board relative to the second substrate.

[0023] In one embodiment, the vertically polarized radiator includes:

[0024] The first WiFi radiator is used to radiate WiFi 5G signals;

[0025] The second WiFi radiator is used to radiate WiFi 2.4G signals.

[0026] In one embodiment, the first WiFi radiator and the second WiFi radiator are rotationally symmetrically disposed on the second substrate, and both the first WiFi radiator and the second WiFi radiator are dipole antennas.

[0027] In one embodiment, the antenna module further includes a first antenna structure, a second antenna structure, a third antenna structure, and a fourth antenna structure respectively connected to the circuit board. The first antenna structure and the third antenna structure are spaced apart on one side of the circuit board, and the second antenna structure and the fourth antenna structure are spaced apart on the opposite side of the circuit board. The first antenna structure, the second antenna structure, the third antenna structure, and the fourth antenna structure are used to radiate at least one of Sub6G signals, Bluetooth signals, and LTE signals.

[0028] In one embodiment, the orthographic projections of the horizontally polarized radiation unit and the vertically polarized radiation unit onto a geometric plane perpendicular to the thickness direction of the circuit board are spaced apart from the circuit board. In one embodiment, the vertically polarized radiation unit includes a plurality of vertically polarized antennas, each with a different orientation of its second signal radiating surface, and the plurality of vertically polarized antennas are arranged circumferentially and equally spaced around the horizontally polarized radiation unit.

[0029] In one embodiment, a plurality of the vertically polarized antennas are arranged circumferentially at equal intervals around the horizontally polarized radiating element.

[0030] In one embodiment, the horizontally polarized radiation unit is used to omnidirectionally radiate radio frequency signals of the first and second network standards, the vertically polarized radiation unit is used to omnidirectionally radiate WiFi signals, and the horizontally polarized radiation unit is disposed closer to the top of the housing than the circuit board.

[0031] In one embodiment, the vertically polarized antenna is used to radiate WiFi 5G signals and WiFi 2.4G signals.

[0032] In one embodiment, the radio frequency signal of the first network standard includes at least LTE signals of the B40 and B41 frequency bands, and the radio frequency signal of the second network standard includes at least NR signals of the N40 and N41 frequency bands.

[0033] A customer front-end device includes: a housing and an antenna module as described above, the antenna module being housed within the housing.

[0034] The aforementioned antenna module and customer front-end equipment include a horizontally polarized radiation unit and a vertically polarized radiation unit. The horizontally polarized radiation unit has a first signal radiation surface, and the vertically polarized unit includes at least one vertically polarized antenna. Each vertically polarized antenna has a second signal radiation surface, and the second signal radiation surface of the vertically polarized antenna is perpendicular to the plane containing the first signal radiation surface of the horizontally polarized radiation unit. One of the horizontally polarized and vertically polarized radiation units is used for omnidirectional radiation of radio frequency signals for the first and second network standards, while the other is used for omnidirectional radiation of WiFi signals. The orthogonal polarization design of the horizontally polarized and vertically polarized radiation units ensures high isolation between them and guarantees omnidirectional radiation, enabling the coexistence and omnidirectional coverage of 4G LTE, 5G NR, and WiFi signals in a small space. Its structure is simple and occupies little space. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the composition structure of a wireless communication system architecture in one embodiment;

[0037] Figure 2 This is a schematic diagram of a customer front-end device in one embodiment;

[0038] Figure 3 for Figure 2 The diagram shown is a schematic of the customer's front-end equipment after the casing has been removed.

[0039] Figure 4 This is a schematic diagram of the customer's front-end device after the housing has been removed, as shown in another embodiment.

[0040] Figure 5 This is a schematic diagram of a horizontally polarized radiation unit in one embodiment;

[0041] Figure 6 This is a schematic diagram of a horizontally polarized radiation unit in another embodiment;

[0042] Figure 7a and Figure 7b This is a radiation field diagram of a horizontally polarized radiation unit in one embodiment;

[0043] Figure 8 This is a schematic diagram of the customer's front-end equipment after the housing has been removed in another embodiment;

[0044] Figure 9 This is a schematic diagram of a vertically polarized antenna in one embodiment;

[0045] Figure 10a and Figure 10b This is a radiation field diagram of a vertically polarized radiation unit in one embodiment;

[0046] Figure 11 This is a schematic diagram illustrating the isolation between horizontally polarized radiation units and vertically polarized radiation units in one embodiment.

[0047] Figure 12 This is a schematic diagram illustrating the efficiency of a vertically polarized radiation unit in one embodiment;

[0048] Figure 13 for Figure 3 The image shown is an exploded view of the customer's front-end equipment after the casing has been removed.

[0049] Figure 14 This is a schematic diagram of a customer front-end device in another embodiment;

[0050] Figure 15 for Figure 14 The image shown is an exploded view of the customer's front-end equipment after the casing has been removed. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0052] It is understood that the terms "first," "second," etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first substrate may be referred to as a second substrate, and similarly, a second substrate may be referred to as a first substrate. Both the first substrate and the second substrate are substrates, but they are not the same substrate.

[0053] See Figure 1 This document illustrates a schematic diagram of the network system architecture provided in an embodiment of this application. The customer front-end device 10 is used to implement network access functionality, converting the operator's public network (WAN) to the user's home local area network (LAN). Current internet broadband access methods can be categorized as FTTH (fiber optic access), DSL (digital telephone line access), Cable (cable TV line access), and Mobile (mobile access, i.e., wireless CPE), etc. The customer front-end device 10 is also a mobile signal access device that receives mobile signals and forwards them as wireless Wi-Fi signals. It can convert 4G or 5G signals into Wi-Fi signals, supporting multiple terminal devices 30, such as mobile phones and tablets, to access the network.

[0054] exist Figure 1In the system architecture shown, the customer front-end device 10 can connect to the first base station 20 in the first network system and access the core network through the first base station 20. Furthermore, the vicinity of the customer front-end device 10 may or may not have cells and base stations of a second network system deployed. The first network system and the second network system are different; for example, the first network system can be a 4G network system and the second network system can be a 5G network system; or, the first network system can be a 5G network system and the second network system can be a future PLMN (Public Land Mobile Network) system evolved from 5G. This application embodiment does not specifically limit which radio frequency system the first network system and the second network system are.

[0055] When the customer front-end device 10 is connected to the 5G network system, the customer front-end device 10 can send and receive data with the corresponding base station through the beam formed by the 5G millimeter-wave antenna module. Moreover, the beam needs to be aligned with the antenna beam of the base station to facilitate the customer front-end device 10 to send uplink data to the base station or receive downlink data sent by the base station.

[0056] refer to Figure 2 In one embodiment, the customer front-end device 10 includes a housing 11 and a circuit board (not shown). The customer front-end device 10 includes an radio frequency (RF) system disposed on the housing 11. Further, in this embodiment, the housing 11 forms a mounting cavity, in which the circuit board and the RF system are both mounted, and the housing 11 provides support, positioning, and protection. Figure 2In the illustrated embodiment, the housing 11 is generally cylindrical, and the appearance of the customer front-end device 10 is primarily represented by the housing 11. In other embodiments, the housing 11 may have other shapes, such as a prism. The circuit board may have multiple interfaces 13 exposed on the housing 11, which are electrically connected to the circuit board. The interfaces 13 include a power interface 131, a USB interface 133, a network cable interface 135, a telephone interface 136, etc. The power interface 131 is used to connect an external power source to power the customer front-end device 10, the USB interface 133 is used for data transmission between the customer front-end device 10 and external devices, and the telephone interface 136 is used to connect an external landline telephone. Of course, the USB interface 133 and the power interface 131 can be integrated into one unit to simplify the arrangement of the interfaces 13 of the customer front-end device 10. The network cable interface 135 may further include a wired network access port and a wired network output port. The customer front-end device 10 can connect to the network through the wired network access port and then connect to other devices through one or more wired network output ports. Of course, in some embodiments, the network cable interface 135 and the telephone interface 136 can be integrated into one unit to simplify the layout of the interface 13 of the customer front-end device 10. Of course, in some embodiments, the wired network output can be omitted; that is, after the customer front-end device 10 accesses the network via the wired network input, it uses a radio frequency system to convert the wired network into a wireless network (e.g., WiFi) for external devices to access the network. Of course, both the wired network input and output can be omitted. In this embodiment, the customer front-end device 10 can access a cellular network (also known as a mobile network) via a radio frequency system, and then convert it into a WiFi signal for external devices to access the network.

[0057] refer to Figure 2 The housing 11 may also be equipped with a button 14 or similar structure, which is used to control the operating status of the customer front-end device 10. For example, a user can press the button 14 to start or stop the customer front-end device 10. The housing 11 may also be equipped with indicator lights or similar devices to indicate the operating status of the customer front-end device 10. In some embodiments, the button 14 and multiple interfaces 13 are located on the same side of the circuit board and exposed on the same side of the housing 11. This arrangement facilitates the assembly of the button 14 and interfaces 13 with the circuit board, improves the appearance of the customer front-end device 10, and enhances ease of use. Of course, this arrangement can be replaced with other arrangements; for example, the interfaces 13 and the button 14 may be exposed on different sides of the housing 11.

[0058] See Figure 3In one embodiment, the radio frequency system includes at least an antenna module 12, which may include a support member 121, a horizontally polarized radiating element 122, and a vertically polarized radiating element 123. The horizontally polarized radiating element 122 has a first signal radiating surface, and the vertically polarized radiating element 123 also has a signal radiating surface. The vertically polarized radiating element 123 is positioned opposite to the horizontally polarized radiating element 122, and the vertically polarized radiating element 123 is perpendicular to the plane containing the first signal radiating surface of the horizontally polarized radiating element 122.

[0059] Specifically, when the vertically polarized radiation element 123 includes multiple vertically polarized antennas, each of its vertically polarized antennas has a second signal radiation surface. The second signal radiation surface of each vertically polarized antenna can constitute the signal radiation surface of the vertically polarized radiation element 123.

[0060] In this embodiment, the customer front-end device 10 can be placed on a horizontal support surface, with the first signal radiating surface of the horizontally polarized radiation unit 122 arranged parallel to the horizontal support surface, and each second signal radiating surface of each vertically polarized antenna arranged perpendicular to the horizontal support surface. The horizontal support surface is perpendicular to the height direction of the housing 11. That is, the first signal radiating surface of the horizontally polarized radiation unit 122 is perpendicular to the height direction (also the axial direction in this embodiment) of the housing 11, and the second signal radiating surface of each vertically polarized antenna is parallel to the height direction of the housing 11. The positions of the housing 11 are respectively opposite to the positions of the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123.

[0061] refer to Figure 3 and Figure 13 In one embodiment, the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 can both be mounted on the support member 121 to fix the relative positions of the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123.

[0062] In one embodiment, the support member 121 may be a polygonal prism. Specifically, the support member 121 may include a supporting top wall 1212 and a plurality of supporting side walls, and the plurality of supporting side walls enclose a receiving cavity, and the supporting top wall 1212 covers one end of the receiving cavity. A horizontally polarized radiation element 122 is provided on the supporting top wall 1212, and at least one vertically polarized antenna 1231 is provided on each supporting side wall.

[0063] For ease of explanation, the following example uses four supporting sidewalls and four vertically polarized antennas 1231. Specifically, the four supporting sidewalls can be designated as first supporting sidewall 1211a, second supporting sidewall 1211b, third supporting sidewall 1211c, and fourth supporting sidewall 1211d, respectively. The four vertically polarized antennas can include first vertically polarized antenna 1231a, second vertically polarized antenna 1231b, third vertically polarized antenna 1231c, and fourth vertically polarized antenna 1231d. The four supporting sidewalls 1211 can be sequentially connected end-to-end to form a receiving cavity, with the included angle between any two adjacent supporting sidewalls 1211 being 90°. A first vertically polarized antenna 1231a is mounted on a first supporting sidewall 1211a, a second vertically polarized antenna 1231b is mounted on a second supporting sidewall 1211b, a third vertically polarized antenna 1231c is mounted on a third supporting sidewall 1211c, and a fourth vertically polarized antenna 1231d is mounted on a fourth supporting sidewall 1211d. A horizontally polarized radiation element 122 is provided on the top supporting wall 1212. In other embodiments, the supporting sidewalls 1211 can be configured as three, with an angle of 120 degrees between adjacent supporting sidewalls 1211; or five, with an angle of 72 degrees between adjacent supporting sidewalls 1211; or more than five supporting sidewalls 1211 can be configured, which will not be elaborated here. Therefore, 360-degree omnidirectional coverage on the horizontal plane can be achieved.

[0064] Optionally, the number of support sidewalls 1211 of the support member 121 may be different from the number of vertically polarized antennas. For example, two vertically polarized antennas may be provided on each support sidewall 1211, and the number of vertically polarized antennas provided on each support sidewall 1211 may be the same or different.

[0065] In one embodiment, the support member 121 may be cylindrical, specifically comprising a circumferential curved sidewall and a supporting top wall 1212, which together form a receiving cavity. A horizontally polarized radiating element 122 is disposed on the supporting top wall 1212, and a plurality of uniformly distributed vertically polarized antennas are disposed on the circumferential curved sidewall. That is, the direction of the battery wave radiated by the vertically polarized antenna is perpendicular to the circumferential curved sidewall. Since at least one vertically polarized antenna is uniformly distributed on its circumferential curved sidewall, 360-degree omnidirectional coverage on the horizontal plane can be achieved.

[0066] Furthermore, the support member 121 can be a one-piece molded structure or an assembly structure composed of multiple parts. The support member 121 can be injection molded from plastic or other non-conductive materials, and it will not interfere with the radiation of electromagnetic waves.

[0067] Optionally, the support 121 can also be on the housing 11, circuit board, or other components with support functions.

[0068] It should be noted that engineering errors should be taken into account, rather than being limited to strict perpendicularity or parallelism. For example, if the angle between two planes is 85 to 90 degrees, the two planes can be considered perpendicular, and if the angle between two planes is 0 to 5 degrees, they can be considered parallel.

[0069] Furthermore, one of the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 is used for omnidirectional radiation of radio frequency signals for the first and second network standards, while the other of the two units is used for omnidirectional radiation of WiFi signals. That is, the horizontally polarized radiation unit 122 is used for omnidirectional radiation of radio frequency signals for the first and second network standards, and the vertically polarized radiation unit 123 is used for omnidirectional radiation of WiFi signals. Alternatively, the horizontally polarized radiation unit 122 is used for omnidirectional radiation of WiFi signals, and the vertically polarized radiation unit 123 is used for omnidirectional radiation of radio frequency signals for the first and second network standards. Omnidirectional radiation can be understood as the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 radiating 360 degrees around the perimeter of the housing 11.

[0070] The radio frequency (RF) signal of the first network standard may include LTE 4G signals, and the RF signal of the second network standard may include NR 5G signals. Specifically, the RF signal of the first network standard may include at least LTE 4G signals in the B40 and B41 frequency bands, and the RF signal of the second network standard may include at least NR 5G signals in the N40 and N41 frequency bands.

[0071] In this embodiment, the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 in the front-end device are positioned relative to each other, and the vertically polarized radiation unit 123 is perpendicular to the plane containing the first signal radiation surface of the horizontally polarized radiation unit 122. Through orthogonal structural layout and polarization design, the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 ensure high isolation between them and ensure that the radiation is omnidirectional. This allows for the coexistence and omnidirectional coverage of 4G LTE, 5G NR, and WiFi systems in a small space. The structure is simple and occupies little space.

[0072] refer to Figure 4In one embodiment, the circuit board 124 of the antenna module 12 is electrically connected to the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123, respectively. Specifically, the circuit board 124 is electrically connected to the horizontally polarized radiation unit 122 via a first feed trace 1225, and the circuit board 124 is electrically connected to the vertically polarized radiation unit 123 via a second feed trace 1234. A clearance area is formed between the circuit board 124 and the top 111 of the housing 11, and the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 are housed within this clearance area. It should be noted that the area of ​​the vertically polarized radiation unit 123 projected onto the circuit board 124 may partially overlap with the circuit board 124; however, slight discrepancies in the size of this overlap may affect the radiation performance of the vertically polarized radiation unit 123.

[0073] Furthermore, the orthographic projections of the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 onto a geometric plane perpendicular to the thickness direction of the circuit board 124 are spaced apart from the circuit board 124.

[0074] By placing the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 in this clearance area, it can be understood that the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 are placed in the clearance area of ​​the customer's front-end equipment. In this way, the radiation performance of the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 will not be affected by the circuit board 124, and the omnidirectional radiation coverage of the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 can be guaranteed.

[0075] See Figure 5 In one embodiment, the horizontally polarized radiation unit 122 includes a first substrate 1221 and a plurality of horizontally polarized radiators 1222, which are arranged circumferentially or rotationally symmetrically on the first substrate 1221.

[0076] Specifically, the horizontally polarized radiator 1222 may include an inverted-F patch antenna, a rectangular patch antenna, a planar antenna, a dipole antenna, or other types of antennas. The first substrate 1221 may be a PCB (Printed Circuit Board), PC (polycarbonate board), or FR4 dielectric substrate. The first substrate 1221 is generally rectangular thin plate, but may also be polygonal, circular, or other shapes. In the embodiments of this application, the specific shape of the first substrate 1221 is not further limited.

[0077] In one embodiment, a plurality of horizontally polarized radiators 1222 are arranged in a circular pattern around a first substrate 1221. For ease of explanation, the first substrate 1221 is rectangular, and the plurality of horizontally polarized radiators 1222 are eight rectangular patch antennas as an example. The eight rectangular patch antennas (exemplarily labeled A1, A2, A3, A4, A5, A6, A7, and A8, respectively) can be arranged in a circular pattern on the first substrate 1221. Optionally, the eight rectangular patch antennas can also be arranged in an octagonal ring on the first substrate 1221. When the horizontally polarized radiating unit 122 is used to radiate radio frequency signals of the first and second network standards, A1, A3, A5, and A7 are used to radiate radio frequency signals in the B40 (N40) band, and A2, A4, A6, and A8 are used to radiate radio frequency signals in the B41 (N41) band. When the horizontally polarized radiation unit 122 is used to radiate WiFi signals, A1, A3, A5, and A7 are used to radiate 2.4G WiFi signals, and A2, A4, A6, and A8 are used to radiate 5G WiFi signals.

[0078] The rectangular patch antenna can be either a directional antenna or an omnidirectional antenna. A directional antenna is one that transmits and receives electromagnetic waves very strongly in one or several specific directions, while transmitting and receiving electromagnetic waves in other directions is zero or extremely weak. An omnidirectional antenna exhibits uniform 360° radiation in the horizontal direction, displaying no directionality, and a beam of a certain width in the vertical direction; generally, the smaller the beamwidth, the greater the gain. When the rectangular patch antennas are directional and there are eight of them, each rectangular patch antenna can cover a fan-shaped area of ​​at least 90°. That is, the ring arrangement of eight rectangular patch antennas can achieve 360° omnidirectional radiation of first and second standard radio frequency signals (B40 / N40 and B41 / N41) or WiFi signals (5G WiFi signals and 2.4G WiFi signals) in the horizontal plane.

[0079] It should be noted that when a directional antenna is selected for the horizontally polarized radiator 1222, the number and arrangement of the horizontally polarized radiators 1222, as well as the sector area covered by each horizontally polarized radiator 1222, can ultimately achieve omnidirectional radiation of 360° on the horizontal plane. When an omnidirectional antenna is selected for the horizontally polarized radiation, the number and arrangement of the horizontally polarized radiators 1222 can be set according to actual needs, and no further limitations are made in this embodiment.

[0080] refer to Figure 6In one embodiment, the first substrate 1221 has a first surface 1221a and a second surface disposed opposite to each other. The horizontally polarized radiating unit 122 includes three or more rotationally symmetrical horizontally polarized radiators 1222, with equal included angles between adjacent horizontally polarized radiators 1222. One horizontally polarized radiator 1222 is located within the area enclosed by the dashed box d, and the other horizontally polarized radiators 1222 can be determined in a similar manner. Each horizontally polarized radiator 1222 includes a first radiating group 1222a and a second radiating group 1222b that are mirror-symmetrical. Both the first radiating group 1222a and the second radiating group 1222b are located on the first surface 1221a.

[0081] Optionally, the first radiation group 1222a is located on the first surface 1221a, the second radiation group 1222b is located on the second surface, and the first radiation group 1222a and the second radiation group are mirror-symmetric to the third radiation group on the first surface 1221a within the area enclosed by the dashed box c.

[0082] Specifically, the first radiation group 1222a includes at least a first radiation arm B1 and a second radiation arm B2 arranged at intervals, with the length of the first radiation arm B1 being greater than the length of the second radiation arm B2. The second radiation group 1222b includes at least a third radiation arm C1 and a fourth radiation arm C2 arranged at intervals, with the third radiation arm C1 corresponding to the first radiation arm B1 and used to radiate a first frequency band signal, and the fourth radiation arm C2 corresponding to the second radiation arm B2 and used to radiate a second frequency band signal. Since the length of the radiation arm directly determines the center frequency of the radiated signal, the center frequency of the signal radiated by the first radiation arm B1 is lower than the center frequency of the signal radiated by the second radiation arm B2, and the center frequency of the signal radiated by the third radiation arm C1 is lower than the center frequency of the signal radiated by the fourth radiation arm C2.

[0083] In one embodiment, the first surface 1221a is provided with four rotationally symmetrical horizontally polarized radiators 1222, and the included angle between adjacent horizontally polarized radiators 1222 is 90 degrees. When the horizontally polarized radiating unit 122 is used to radiate radio frequency signals of the first and second network standards, the third radiating arm C1 and the first radiating arm B1 are used to radiate radio frequency signals in the B40 (N40) band, and the fourth radiating arm C2 and the second radiating arm B2 are used to radiate radio frequency signals in the B41 (N41) band. Specifically, the radiation field pattern of the horizontally polarized radiating unit 122 is as follows: Figure 7a and Figure 7b As shown.

[0084] When the horizontally polarized radiation unit 122 is used to radiate WiFi signals, the third radiation arm C1 and the first radiation arm B1 are used to radiate 2.4G WiFi signals, and the fourth radiation arm C2 and the second radiation arm B2 are used to radiate 5G WiFi signals.

[0085] In other embodiments, three rotationally symmetric horizontally polarized radiators 1222 may be provided, with an angle of 120 degrees between adjacent horizontally polarized radiators 1222; or five rotationally symmetric horizontally polarized radiators 1222 may be provided, with an angle of 72 degrees between adjacent horizontally polarized radiators 1222; or more than five rotationally symmetric horizontally polarized radiators 1222 may be provided, which will not be elaborated here.

[0086] refer to Figure 4 , 5 Furthermore, the first substrate 1221 is also provided with a feed point 1223, and the antenna module 12 also includes a transmission line 1224 and a first feed trace 1225 connected to the feed point 1223. The first feed trace 1225 is also used to connect to the circuit board 124 to transmit the feed current output by the circuit board 124, and feed the feed current into the corresponding horizontally polarized radiator 1222 through the feed point 1223. The horizontally polarized radiator 1222 can convert the fed conductive traveling wave into an electromagnetic wave that propagates in free space and form a radiation field, thereby achieving 360-degree omnidirectional coverage on the horizontal plane.

[0087] refer to Figure 4 , 8 13. In one embodiment, the vertically polarized radiation unit 123 includes at least one vertically polarized antenna 1231. The vertically polarized antennas 1231 are distributed circumferentially around the housing. When there are multiple vertically polarized antennas 1231, the orientation of the second signal radiating surface of each vertically polarized antenna 1231 is different, and the multiple vertically polarized antennas 1231 are arranged circumferentially around the horizontally polarized radiation unit 122. Further, each second signal radiating surface can be planar or curved, and the plane or curved surface where each second signal radiating surface is located is perpendicular to the plane where the first signal radiating surface of the horizontally polarized radiation unit 122 is located.

[0088] Furthermore, multiple vertically polarized antennas 1231 are arranged at equal intervals around the horizontally polarized radiating element 122. Specifically, the second signal radiating surface of each vertically polarized antenna 1231 is perpendicular to the first substrate 1221, and the included angle between the second signal radiating surfaces of any two adjacent vertically polarized antennas 1231 is equal. For example, when there are four vertically polarized antennas 1231, the included angle between the second signal radiating surfaces of two adjacent vertically polarized antennas 1231 is 90 degrees; when there are five vertically polarized antennas 1231, the included angle between the second signal radiating surfaces of two adjacent vertically polarized antennas 1231 is 72 degrees, and so on. Furthermore, when the vertically polarized antenna 1231 is a directional antenna, each vertically polarized antenna 1231 can cover a fan-shaped area of ​​at least 90°, thereby achieving 360° omnidirectional coverage in the horizontal plane.

[0089] refer to Figure 9 The vertically polarized antenna 1231 includes a second substrate 12311 and a vertically polarized radiator 12312 disposed on the second substrate 12311. The vertically polarized radiator 12312 can be a dipole antenna, a Yagi antenna, or other types of vertically polarized antenna 1231, etc.

[0090] In one embodiment, the vertically polarized radiator 12312 includes a first WiFi radiator for radiating WiFi 5G signals and a second WiFi radiator for radiating WiFi 2.4G signals. That is, the first WiFi radiator can be a 2.4 GHz WiFi radiating element, and the second WiFi radiator can be a 5 GHz WiFi radiating element. Further, the first and second WiFi radiators are rotationally symmetrically disposed on the second substrate 12311, and both the first and second WiFi radiators are dipole antennas. Specifically, the radiation field pattern of the WiFi 2.4G antenna is as follows... Figure 10a and Figure 10b As shown.

[0091] In one embodiment, the vertically polarized radiator 12312 includes a first radiator for radiating B40 (N40) signals and a second radiator for radiating B41 (N41) signals. Further, the first and second radiators are symmetrically disposed on the second substrate 12311, and both the first and second radiators are dipole antennas.

[0092] In one embodiment, when the vertically polarized antenna 1231 is used to radiate WiFi signals and the horizontally polarized radiation unit 122 is used to omnidirectionally radiate radio frequency signals of the first and second network standards, the horizontally polarized radiation unit 122 is positioned closer to the top 111 of the housing 11 relative to the circuit board 124. That is, the horizontally polarized radiation unit 122 is positioned further away from the circuit board 124 relative to the vertically polarized antenna 1231. This reduces the interference of the circuit board 124 on the radiation performance of the horizontally polarized radiation unit 122, thereby improving the omnidirectional radiation performance of the horizontally polarized radiation unit 122.

[0093] It should be noted that in the antenna module 12 provided in this application embodiment, the relative positional relationship between the first substrate 1221, the second substrate 12311 and the circuit board 124, as well as the frequency bands of the radio frequency signals radiated by the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123, can be arbitrarily combined.

[0094] For ease of explanation, this example uses a horizontally polarized radiation unit 122 to radiate radio frequency signals for the first and second network standards, and a vertically polarized radiation unit 123 to radiate WiFi signals. The vertically polarized radiation unit 123 includes four vertically polarized antennas 1231, and its second substrate 12311 is located between the first substrate 1221 and the circuit board 124. The horizontally polarized radiation unit 122 can also be referred to as an LTE & NR antenna, and the vertically polarized radiation unit 123 can also be referred to as a WiFi antenna. The WiFi antenna can include a WiFi 2.4G antenna and a WiFi 5G antenna. The four vertically polarized antennas 1231 of the vertically polarized radiation unit 123 can include a first vertically polarized antenna WiFi1, a second vertically polarized antenna WiFi2, a third vertically polarized antenna WiFi3, and a fourth vertically polarized antenna WiFi4. The second signal radiating surface of each vertically polarized antenna 1231 is perpendicular to the first substrate 1221. When the vertically polarized antenna 1231 is a directional antenna, each vertically polarized antenna 1231 can cover a fan-shaped area of ​​at least 90°, thereby achieving 360° omnidirectional coverage in the horizontal plane. The isolation between the LTE & NR antenna and each vertically polarized antenna 1231 is as follows: Figure 4 As shown, it can be seen that the coexistence isolation between the LTE & NR antenna and the WiFi 2.4G antenna is greater than 25dB, and the coexistence isolation between the LTE & NR antenna and the WiFi 5G antenna is greater than 30dB.

[0095] The antenna efficiencies of LTE & NR antennas and WiFi antennas are as follows: Figure 11 and Figure 12 Therefore, it can be seen that the antenna efficiency of both LTE & NR antennas and WiFi antennas is greater than 60%.

[0096] In the above embodiments, the horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123 can be disposed in a pre-reserved clearance area above the circuit board 124, and will not be affected by the circuit board 124. The horizontally polarized radiation unit 122 adopts a horizontally polarized radiator arranged in a ring on the first substrate, so that the horizontally polarized radiation unit 122 achieves omnidirectional radiation characteristics; the vertically polarized radiation unit 123 is placed vertically around the lower perimeter of the horizontally polarized radiation unit 122, and adopts a vertically polarized dipole antenna to achieve omnidirectional radiation. The horizontally polarized radiation unit 122 and the vertically polarized radiation unit 123, through orthogonal polarization design, ensure high isolation between the antennas. That is, polarization can be used for isolation in a compact space to generate high isolation, enabling the coexistence of 4G LTE, 5G NR, and WiFi systems, and achieving omnidirectional coverage.

[0097] refer to Figure 14 and Figure 15 In one embodiment, the antenna module 12 further includes a first antenna structure 125, a second antenna structure 126, a third antenna structure 127, and a fourth antenna structure 128 electrically connected to the circuit board 124. The first antenna structure 125 and the third antenna structure 127 are spaced apart on one side of the circuit board 124, while the second antenna structure 126 and the fourth antenna structure 128 are spaced apart on the opposite side of the circuit board 124.

[0098] Specifically, the centroids of the first antenna structure 125, the second antenna structure 126, the third antenna structure 127, and the fourth antenna structure 128 are approximately aligned. These structures can be projected orthogonally onto the circuit board 124. The circuit board 124 includes a first end face and a second end face arranged opposite to each other, and the first antenna structure 125, the second antenna structure 126, the third antenna structure 127, and the fourth antenna structure 128 can be projected orthogonally onto the area between the first end face and the second end face.

[0099] The first antenna structure 125, the second antenna structure 126, the third antenna structure 127, and the fourth antenna structure 128 are used to radiate at least one of Sub 6G signals, Bluetooth signals, and LTE signals. In one embodiment, the first antenna structure 125, the second antenna structure 126, the third antenna structure 127, and the fourth antenna structure 128 can be used to radiate signals of the same network standard. For example, they can all be used to radiate Sub 6G signals, and the frequency bands of the Sub 6G signals radiated by each antenna structure can be the same or different; they can all be used to radiate LTE signals, and the frequency bands of the LTE signals radiated by each antenna structure can be the same or different; they can all be used to radiate Bluetooth signals.

[0100] Optionally, at least two of the first antenna structure 125, the second antenna structure 126, the third antenna structure 127, and the fourth antenna structure 128 can be used to radiate signals of the same network standard. For example, the first antenna structure 125 and the second antenna structure 126 located on both sides of the circuit board 124 can be used to radiate Sub 6G signals, while the third antenna structure 127 and the fourth antenna structure 128 located on both sides of the circuit board 124 are used to radiate LTE signals; the first antenna structure 125 and the second antenna structure 126 located on both sides of the circuit board 124 can be used to radiate Sub 6G signals, while the third antenna structure 127 and the fourth antenna structure 128 located on both sides of the circuit board 124 are both used to radiate LTE signals and Bluetooth signals.

[0101] It should be noted that, in the embodiments of this application, the network standard and frequency band of the radio frequency signals that can be radiated by the first antenna structure 125, the second antenna structure 126, the third antenna structure 127 and the fourth antenna structure 128 can be arbitrarily combined.

[0102] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An antenna module, characterized by include: A horizontally polarized radiation unit has a first signal radiation surface; A vertically polarized radiating element includes multiple vertically polarized antennas, each having a second signal radiating surface. The second signal radiating surface of each vertically polarized antenna is perpendicular to the plane containing the first signal radiating surface of the horizontally polarized radiating element. The orientation of the second signal radiating surface of each vertically polarized antenna is different. One of the horizontally polarized radiation unit and the vertically polarized radiation unit is used to omnidirectionally radiate radio frequency signals of the first network standard and the second network standard, and the other of the horizontally polarized radiation unit and the vertically polarized radiation unit is used to omnidirectionally radiate WiFi signals. The support member is provided with both the horizontally polarized radiation unit and the vertically polarized radiation unit, and each of the vertically polarized antennas is distributed at intervals along the outer periphery of the support member.

2. The antenna module of claim 1, wherein, Multiple vertically polarized antennas are arranged circumferentially around the horizontally polarized radiating element.

3. The antenna module according to claim 2, characterized in that, Multiple vertically polarized antennas are arranged at equal intervals around the horizontally polarized radiating element.

4. The antenna module according to claim 1, characterized in that, The support includes a top support wall and multiple side support walls. The multiple side support walls are connected end to end and enclose a receiving cavity. The top support wall covers one end of the receiving cavity. The horizontally polarized radiation unit is disposed on the top support wall. At least one vertically polarized antenna is disposed on each side support wall.

5. The antenna module according to claim 1, characterized in that, The support member includes a supporting top wall and a circumferential curved side wall, and the circumferential curved side wall and the supporting top wall enclose a receiving cavity. The horizontally polarized radiation unit is provided on the supporting top wall, and a plurality of uniformly distributed vertically polarized antennas are provided on the circumferential curved side wall.

6. The antenna module according to claim 1, characterized in that, The support component is a one-piece molded structure, or the support component is an assembly structure composed of multiple parts.

7. The antenna module according to claim 1, characterized in that, The horizontally polarized radiation unit includes a first substrate and a plurality of horizontally polarized radiators, and the plurality of horizontally polarized radiators are arranged on the first substrate in an axisymmetric or rotationally symmetrical manner.

8. The antenna module according to claim 7, characterized in that, Multiple horizontally polarized radiators are arranged around the first substrate.

9. The antenna module according to claim 7, characterized in that, The first substrate has a first surface and a second surface disposed opposite to each other. The horizontally polarized radiation unit includes three or more horizontally polarized radiators that are rotationally symmetrical. The included angle between two adjacent horizontally polarized radiators is equal. Each horizontally polarized radiator includes a first radiation group and a second radiation group that are mirror-symmetrical. The first radiation group and the second radiation group are both located on the first surface, or the first radiation group is located on the first surface and the second radiation group is located on the second surface.

10. The antenna module according to claim 9, characterized in that, The first radiation group includes at least a first radiation arm and a second radiation arm that are spaced apart from each other, wherein the length of the first radiation arm is greater than the length of the second radiation arm; The second radiation group includes at least a third radiation arm and a fourth radiation arm that are spaced apart from each other. The third radiation arm is arranged corresponding to the first radiation arm and is used to radiate a first frequency band signal, and the fourth radiation arm is arranged corresponding to the second radiation arm and is used to radiate a second frequency band signal.

11. The antenna module according to claim 1, characterized in that, The antenna module also includes a circuit board, which is electrically connected to the horizontally polarized radiation unit and the vertically polarized radiation unit, respectively.

12. The antenna module according to claim 11, characterized in that, The orthographic projections of the horizontally polarized radiation unit and the vertically polarized radiation unit onto a geometric plane perpendicular to the thickness direction of the circuit board are spaced apart from the circuit board.

13. The antenna module according to claim 11, characterized in that, The vertically polarized antenna includes a second substrate and a vertically polarized radiator disposed on the second substrate, wherein the horizontally polarized radiating element is disposed away from the circuit board relative to the second substrate.

14. The antenna module according to claim 13, characterized in that, The vertically polarized radiator includes: The first WiFi radiator is used to radiate WiFi 5G signals; The second WiFi radiator is used to radiate WiFi 2.4G signals.

15. The antenna module according to claim 14, characterized in that, The first WiFi radiator and the second WiFi radiator are rotate symmetrically disposed on the second substrate, and both the first WiFi radiator and the second WiFi radiator are dipole antennas.

16. The antenna module according to claim 11, characterized in that, The antenna module further includes a first antenna structure, a second antenna structure, a third antenna structure, and a fourth antenna structure, which are respectively connected to the circuit board. The first antenna structure and the third antenna structure are spaced apart on one side of the circuit board, and the second antenna structure and the fourth antenna structure are spaced apart on the opposite side of the circuit board. The first antenna structure, the second antenna structure, the third antenna structure, and the fourth antenna structure are used to radiate at least one of Sub 6G signals, Bluetooth signals, and LTE signals.

17. The antenna module according to claim 1, characterized in that, The horizontally polarized radiation unit is used to omnidirectionally radiate radio frequency signals of the first network standard and the second network standard, and the vertically polarized radiation unit is used to omnidirectionally radiate WiFi signals.

18. The antenna module according to claim 17, characterized in that, The radio frequency signals of the first network standard include at least LTE signals in the B40 and B41 frequency bands, and the radio frequency signals of the second network standard include at least NR signals in the N40 and N41 frequency bands.

19. A customer front-end device, characterized in that, include: The housing and the antenna module as described in any one of claims 1-18, wherein the antenna module is housed within the housing.

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